208044980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{389}}^1$

素因数の和:450

約数の個数: 144

約数和(自身を含む): 548992080

約数和(自身を除く): 340947100

約数列:

[1, 2, 4, 5, 10, 11, 13, 17, 20, 22, 26, 34, 44, 52, 55, 65, 68, 85, 110, 121, 130, 143, 170, 187, 220, 221, 242, 260, 286, 340, 374, 389, 442, 484, 572, 605, 715, 748, 778, 884, 935, 1105, 1210, 1430, 1556, 1573, 1870, 1945, 2057, 2210, 2420, 2431, 2860, 3146, 3740, 3890, 4114, 4279, 4420, 4862, 5057, 6292, 6613, 7780, 7865, 8228, 8558, 9724, 10114, 10285, 12155, 13226, 15730, 17116, 20228, 20570, 21395, 24310, 25285, 26452, 26741, 31460, 33065, 41140, 42790, 47069, 48620, 50570, 53482, 55627, 66130, 72743, 85580, 85969, 94138, 101140, 106964, 111254, 132260, 133705, 145486, 171938, 188276, 222508, 235345, 267410, 278135, 290972, 343876, 363715, 429845, 470690, 534820, 556270, 611897, 727430, 800173, 859690, 941380, 945659, 1112540, 1223794, 1454860, 1600346, 1719380, 1891318, 2447588, 3059485, 3200692, 3782636, 4000865, 4728295, 6118970, 8001730, 9456590, 10402249, 12237940, 16003460, 18913180, 20804498, 41608996, 52011245, 104022490, 208044980]

約数ペア:

[(1, 208044980), (2, 104022490), (4, 52011245), (5, 41608996), (10, 20804498), (11, 18913180), (13, 16003460), (17, 12237940), (20, 10402249), (22, 9456590), (26, 8001730), (34, 6118970), (44, 4728295), (52, 4000865), (55, 3782636), (65, 3200692), (68, 3059485), (85, 2447588), (110, 1891318), (121, 1719380), (130, 1600346), (143, 1454860), (170, 1223794), (187, 1112540), (220, 945659), (221, 941380), (242, 859690), (260, 800173), (286, 727430), (340, 611897), (374, 556270), (389, 534820), (442, 470690), (484, 429845), (572, 363715), (605, 343876), (715, 290972), (748, 278135), (778, 267410), (884, 235345), (935, 222508), (1105, 188276), (1210, 171938), (1430, 145486), (1556, 133705), (1573, 132260), (1870, 111254), (1945, 106964), (2057, 101140), (2210, 94138), (2420, 85969), (2431, 85580), (2860, 72743), (3146, 66130), (3740, 55627), (3890, 53482), (4114, 50570), (4279, 48620), (4420, 47069), (4862, 42790), (5057, 41140), (6292, 33065), (6613, 31460), (7780, 26741), (7865, 26452), (8228, 25285), (8558, 24310), (9724, 21395), (10114, 20570), (10285, 20228), (12155, 17116), (13226, 15730)]